#17203: Make sage -notebook=ipython land by default in pwd
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Reporter: | Owner:
slabbe | Status: needs_review
Type: | Milestone: sage-6.4
defect | Resolution:
Priority: major | Merged in:
Component: | Reviewers:
notebook | Work issues:
Keywords: | Commit:
Authors: | e8f739c38be79155ffa6a6ca8e73a8854c3af6f9
Report Upstream: N/A | Stopgaps:
Branch: |
u/slabbe/17203 |
Dependencies: |
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Description changed by slabbe:
Old description:
> Since #16996 the default directory of {{{sage -notebook=ipython}}} is
> {{{DOT_SAGE/notebooks_ipython/}}} following the old notebook. In the old
> Sage notebook, each worksheet was a directory and even each single cell
> was stored in its own directory. Therefore, there was no notion of
> "present working directory" at all. With the ipython notebook, each
> worksheet lives in one present working directory chosen by the user. That
> is one of the main point of the ipython notebook philosophy and we should
> not change that in Sage. See the post of Fernando Perez about difference
> between the ipython notebook and the Sage notebook:
>
> ''"This is a key difference of our approach and the Sage notebook, so
> it' worth clarifying what I mean, the key point being the execution model
> and its relation to the filesystem. The Sage notebook took the route of
> using the filesystem for notebook operations, so you can't meaningfully
> use 'ls' in it or move around the filesystem yourself with 'cd', because
> Sage will always execute your code in hidden directories with each cell
> actually being a separate subdirectory. This is a perfectly valid
> approach and has a number of very good consequences for the Sage
> notebook, but it is also very different from the IPython model where we
> always keep the user very close to the filesystem and OS. For us, it's
> really important that you can access local scripts, use %run, see
> arbitrary files conveniently, etc., as these are routine needs in data
> analysis and numerical simulation."'' (Fernando Perez,
> [http://blog.fperez.org/2012/01/ipython-notebook-historical.html The
> IPython notebook: a historical retrospective], January 2012)
>
> Let's change the default directory so that it is equal to the present
> working directory (`pwd`) as it is the nice way of using ipython.
New description:
Since #16996 the default directory of {{{sage -notebook=ipython}}} is
{{{DOT_SAGE/notebooks_ipython/}}} following the old notebook. In the old
Sage notebook, each worksheet was a directory and even each single cell
was stored in its own directory. Therefore, there was no notion of
"present working directory" at all. With the ipython notebook, each
worksheet lives in one present working directory chosen by the user. That
is one of the main point of the ipython notebook philosophy and we should
not change that in Sage. See the post of Fernando Perez about difference
between the ipython notebook and the Sage notebook:
''"This is a key difference of our approach and the Sage notebook, so
it' worth clarifying what I mean, the key point being the execution model
and its relation to the filesystem. The Sage notebook took the route of
using the filesystem for notebook operations, so you can't meaningfully
use 'ls' in it or move around the filesystem yourself with 'cd', because
Sage will always execute your code in hidden directories with each cell
actually being a separate subdirectory. This is a perfectly valid
approach and has a number of very good consequences for the Sage notebook,
but it is also very different from the IPython model where we always keep
the user very close to the filesystem and OS. For us, it's really
important that you can access local scripts, use %run, see arbitrary files
conveniently, etc., as these are routine needs in data analysis and
numerical simulation."'' (Fernando Perez, [http://blog.fperez.org/2012/01
/ipython-notebook-historical.html The IPython notebook: a historical
retrospective], January 2012)
Let's change the default directory so that it is equal to the present
working directory (`pwd`) as it is the nice way of using ipython.
[https://groups.google.com/d/topic/sage-devel/NxN_oCasrkA/discussion See
the related discussion and vote on sage-devel].
--
--
Ticket URL: <http://trac.sagemath.org/ticket/17203#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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